99 jimmy 4wd problem

2bbows

06-08-2009, 10:25 PM

lites blink in 4h,4l and 4aw, code co367 present, changed vac switch on fire wall, constant power to one side of vac switch and sensor on front axel, no vac from switch, checked for water around module at kick panel, when vac applied switch under battery operates, can hear transfer engage and front shaft turns, any help thanks